package com.imooc.service;

import com.imooc.bo.UserBo;
import com.imooc.pojo.Stu;
import com.imooc.pojo.Users;

public interface UserService {
    /**
     * 判断用户名是否存在
     * @param username
     * @return
     */
    boolean queryUsernameIsExist(String username);


    public Users createUser(UserBo users);

    public Users queryUser4Login(String username,String password);
}
